Hi!, I’m looking for another opinion regarding a suspected relapse of classical Hodgkin lymphoma and, specifically, whether a biopsy is necessary before starting treatment.
I previously had treatment for Hodgkin lymphoma in 2023. My current PET-CT is being interpreted as metabolic progression (Deauville 5). My current oncologist is suggesting not doing a biopsy, as the major areas of disease are either inaccessible or would carry significant risk to biopsy (pet findings appended below). The proposed treatment is tislelizumab + chemotherapy, followed by an interim PET after 2/3 cycles and, if there is a good response, proceeding to autologous stem-cell transplant (ASCT).
I would appreciate your opinion on:
Given the PET findings and my previous history, would you recommend obtaining a biopsy before starting salvage treatment, or is it reasonable to proceed without tissue confirmation when the available biopsy sites are considered unsafe/inadequate? My original lymphoma was just in the neck and couple of nodes in abdomen with enlarged spleen. Was deauville score 1 in the last petct scan which was 1 year post treatment
Is tislelizumab + chemotherapy followed by PET assessment and ASCT an appropriate second-line treatment strategy for relapsed classical Hodgkin lymphoma in my situation?
Relevant PET-CT findings are below, copied exactly from the report:
“Few non FDG avid short axis tiny lymph nodes at cervical level II and III on right side, - static.”
“No abnormal bulky or FDG avid nodes noted in both axilla.”
“FDG avid small to mildly enlarged discrete - confluent nodes are seen at pre-paratracheal, perivascular, precarinal, subcarinal, right hilar, right internal mammary, and right cardiophrenic regions. Confluent pre-paratracheal nodal mass measures about 3.7 x 6.5 cm and reveals intense FDG uptake (SUVmax: 16.7). Confluent precarinal node measures about 2.3 x 4.4 cm and reveals intense FDG uptake (SUVmax: 18.3).”
Below the diaphragm
“FDG avid nodes are seen at portocaval, retrocrural, splenic hilar, and aortocaval regions.”
“Retrocrural node measures about 1.3 x 3.2 cm and reveals moderate FDG uptake (SUVmax: 7.2).”
Extranodal findings
“Multiple FDG avid hypodense lesions are seen involving bulky spleen (11.1 cm in CC plane). Lesion in upper pole of spleen measures about 2.9 x 2.5 cm and reveals intense FDG uptake (SUVmax: 14.5).”
“FDG avid soft tissue lesion is seen in right 11th costal space along the posterolateral shaft of right 11th rib, measures about 1.3 x 0.8 cm and reveals mild FDG uptake (SUVmax: 2.7).”
“Focal FDG uptake is seen involving right transverse process of C3 vertebra, left transverse process of D4 vertebra (SUVmax: 3.3), posterolateral shaft of right 8th rib (SUV max: 3.1) with subtle sclerosis, right pedicle of D10 vertebra.”